Chemistry, 03.02.2020 02:49 thickbeanpapi
How does ionization energy change as you move down a group and across a period on the periodic table?
Answers: 3
Chemistry, 23.06.2019 03:30
Why do electrons further from the nucleus have more energy
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Chemistry, 23.06.2019 10:00
What is the density, d, of a substance with a volume of v = 12.5 cm3 and a mass of m = 74.4 g ?
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Chemistry, 24.06.2019 00:00
Calculate the solubility of o2 in water at a partial pressure of o2 of 120 torr at 25 ÌŠc. the henry's law constant for o2 at 25 ÌŠc is 1.3 x 10-3 mol/l atm. how do you expect the solubility to change if the temperature were decreased?
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Chemistry, 24.06.2019 03:30
Agroup of students working in a high school chemistry lab believe they have discovered a new element! how exciting! upon further testing by scientists (with better equipment), it is found that the new element contains 74 protons and 110 neutrons. 1. what is the atomic number of this element? ¬¬ 2. what is the mass number of this element? 3. is this really a new element? explain your reasoning. 4. give the name and symbol for this 5. when the students discovered it, did they find a solid, a liquid, or a gas? explain your reasoning.
Answers: 2
How does ionization energy change as you move down a group and across a period on the periodic table...
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